All data are in degrees Fahrenheit

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Water temperature in Fukuoka

Detailed information about the current water temperature in Fukuoka. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Fukuoka now

55.1

°F

February 2, 03:00

Trend:

stable

Yesterday:

55.3°F

Tomorrow:

55.1°F

Sunrise:

07:15

Sunset:

17:50

Day Length:

10 h. 35 min.

Fukuoka in February

Minimum:

57.9°F

Average:

59.4°F

Maximum:

61.5°F

Sea water temperature in Fukuoka today

As of now, in Fukuoka, the water temperature is 55.1°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 1.1°F lower than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to stay about the same.

Recent sea temperature and forecast

Today's water temperature is slightly lower than the average registered over the last two weeks, indicating a slight cooling trend. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 58.4°F on 2017, while the historical minimum was 53.9°F on 2023.

Observations from the last two weeks indicate that the water temperature was in proximity to the lowest values recorded on those days in the past. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 54.8°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Fukuoka

Date Current Year

actual* / forecast**

last year 10 years average
Jan 19 56.0°F 56.3°F 57.2°F
Jan 20 56.2°F 55.2°F 57.1°F
Jan 21 56.5°F 55.7°F 56.9°F
Jan 22 55.8°F 54.9°F 56.8°F
Jan 23 55.5°F 55.4°F 56.9°F
Jan 24 55.4°F 55.2°F 56.9°F
Jan 25 55.7°F 55.8°F 56.9°F
Jan 26 55.7°F 55.9°F 56.9°F
Jan 27 56.1°F 56.0°F 56.9°F
Jan 28 54.6°F 56.2°F 56.9°F
Jan 29 54.6°F 56.3°F 56.9°F
Jan 30 54.0°F 56.3°F 56.6°F
Jan 31 54.9°F 55.2°F 56.5°F
Feb 1 55.3°F 55.2°F 56.4°F
Feb 2 55.1°F 55.2°F 56.2°F
Feb 3 55.1°F 55.3°F 56.2°F
Feb 4 55.0°F 55.2°F 56.1°F
Feb 5 54.8°F 55.0°F 55.9°F
Feb 6 54.7°F 55.0°F 55.8°F
Feb 7 54.8°F 55.0°F 55.9°F
Feb 8 54.5°F 55.0°F 55.6°F
Feb 9 54.4°F 54.8°F 55.5°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Fukuoka by month

In Fukuoka, the months July through October offer comfortable swimming conditions, which amounts to 112 swimming days.
The warmest water in Fukuoka was recorded on August 4, 2024, reaching a 88.2°F. While the coldest temperature occurred on March 10, 2025, dipping to 51.7°F. The average readings by season are 58.5°F in Winter, 60.1°F in Spring, 77.8°F in Summer, and 73.5°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Kitakyushu 54.1°F 30mi
Shimonoseki 54.7°F 39mi
Kumamoto 51.6°F 57mi
Nagasaki 58.5°F 66mi

* current water temperature in this city

** straight line distance from Fukuoka